Free tool
Free TikTok Thumbnail Maker with AI
Describe it, pick a style, get a TikTok cover in seconds.
One free thumbnail a day. Sign up free to generate from your actual video, without a watermark, with variants.
How to use it
Describe it
Type what the cover should show and the mood you want.
Pick a style
Choose a look that fits your niche.
Generate
Get a vertical 1080×1920 cover in seconds. Sign up free to remove the watermark and make covers from your video.
Vertical covers that earn the tap
TikTok shows your cover across your profile grid and in search, so a strong one lifts views on every video you post. This generates a 1080×1920 cover from a description with the same AI behind Thumbn's studio.
No editor, no templates. Describe it, choose a style, done.
Try it free, upgrade to your real footage
One free cover a day, watermarked — enough to see the quality.
Sign up free to generate covers from your actual TikToks with no watermark, plus multiple concepts and chat-based edits.
Frequently asked questions
- Is the TikTok cover maker free?
- Yes — one watermarked cover a day with no account, unlimited and watermark-free when you sign up free.
- What size are the covers?
- Vertical 1080×1920 (9:16), the size TikTok uses.
- Do I need design skills?
- No. Describe the cover and pick a style — the AI generates it.
- Can it use my TikTok video?
- Sign up free and the studio builds covers from your uploaded video or link.
- Why is there a watermark?
- The free preview is watermarked; a free account removes it.
Need the thumbnail, not just the tool?
Thumbn watches your video, finds the frame worth using, writes the concept and renders it at every platform size — then grades its own work and redoes it until it clears the bar.